Use internal Playwright mirror for E2E tester builds

.gitea/workflows/cicd.yaml

@@ -864,9 +864,9 @@ jobs:
         run: |
           set -euo pipefail
 
-          PLAYWRIGHT_BASE_IMAGE="mcr.microsoft/playwright:v1.56.1-jammy"
+          PLAYWRIGHT_BASE_IMAGE="${GITEA_REGISTRY}/darkhelm.org/playwright-browsers:v1.56.1-jammy"
 
-          retry_pull_with_dns_probe() {
+          retry_base_pull() {
             image_ref="$1"
             attempts="${2:-6}"
             backoff="${3:-5}"
@@ -875,13 +875,13 @@ jobs:
             while [ "${attempt}" -le "${attempts}" ]; do
               echo "base pull attempt ${attempt}/${attempts} for ${image_ref}"
 
-              if getent hosts mcr.microsoft >/dev/null 2>&1; then
-                echo "mcr.microsoft DNS resolution: ok"
+              if getent hosts "${GITEA_REGISTRY_HOST}" >/dev/null 2>&1; then
+                echo "${GITEA_REGISTRY_HOST} DNS resolution: ok"
               else
-                echo "mcr.microsoft DNS resolution: failed"
+                echo "${GITEA_REGISTRY_HOST} DNS resolution: failed"
               fi
 
-              timeout 10 curl -fsSIL "https://mcr.microsoft/v2/" >/dev/null || true
+              timeout 10 curl -fsSIL "https://${GITEA_REGISTRY}/v2/" >/dev/null || true
 
               if docker pull "${image_ref}"; then
                 return 0
@@ -932,8 +932,10 @@ jobs:
           E2E_TESTER_REPO="${GITEA_REGISTRY}/darkhelm.org/plex-playlist-e2e"
           E2E_TESTER_TAG_REF="${E2E_TESTER_REPO}:${HEAD_SHA}"
 
-          retry_pull_with_dns_probe "${PLAYWRIGHT_BASE_IMAGE}" 6 5
-          DOCKER_BUILDKIT=0 docker build --pull=false -f Dockerfile.e2e-tester -t plex-playlist-e2e:"${HEAD_SHA}" .
+          retry_base_pull "${PLAYWRIGHT_BASE_IMAGE}" 6 5
+          DOCKER_BUILDKIT=0 docker build --pull=false -f Dockerfile.e2e-tester \
+            --build-arg PLAYWRIGHT_BASE_IMAGE="${PLAYWRIGHT_BASE_IMAGE}" \
+            -t plex-playlist-e2e:"${HEAD_SHA}" .
           docker tag plex-playlist-e2e:"${HEAD_SHA}" "${E2E_TESTER_TAG_REF}"
 
           retry_registry_op push "${E2E_TESTER_TAG_REF}" 5 4

Dockerfile.e2e-tester

@@ -1,4 +1,5 @@
-FROM mcr.microsoft/playwright:v1.56.1-jammy
+ARG PLAYWRIGHT_BASE_IMAGE=mcr.microsoft/playwright:v1.56.1-jammy
+FROM ${PLAYWRIGHT_BASE_IMAGE}
 
 WORKDIR /workspace/frontend